Cylinder Head Gasket 07C103148AB Fits Audi A8 Volkswagen Phaeton Bentley Continental 6.0L W12 Engine Right Side Covers Cylinders 1 6

07C103148AB Right Cylinder Head Gasket – Premium Seal for 6.0L W12 Engines

Why This Gasket Matters
A direct OEM-spec replacement for 07C103148AB, this right-side cylinder head gasket is engineered exclusively for the 6.0L W12 engine—designed to withstand extreme pressure (100+ bar) and temperatures (400°C+). It’s the critical seal your high-performance Audi, Volkswagen, or Bentley needs to prevent leaks and maintain peak engine power.
Exact Fit Models & Years
This gasket is precision-matched to these 6.0L W12-powered vehicles:
• Audi A8: D3 series (2002–2009) and D4 series (2010–2017), all high-end trims with the 6.0L W12 engine.
• Volkswagen Phaeton: 2002–2016 flagship models, covering every 6.0L W12 variant of this iconic luxury sedan.
• Volkswagen Touareg: 7LA/7L6/7L7 series (2004–2010), specifically the 6.0L W12 SUV versions.
• Bentley Continental: First-gen GT (2003–2010, including coupe/convertible) and Flying Spur (2005–2018), all 6.0L W12 configurations.
Note: Not compatible with Audi S8 (V8/V10 engines) or Bentley V8 models—only fits 6.0L W12 powertrains.
Key Specs
• Position: Right-side, sealing cylinders 1–6 of the W12 engine (paired with left-side gasket 07C103149Q for full engine protection).
• Engine Fit: 6.0L W12 (5,998 cc), matching the exact cylinder volume and bolt patterns of OEM designs.
• Material: Heat-resistant composite with high compression resistance, engineered to seal tight even after years of high-stress operation.
• Precision: 0.01mm tolerance on sealing surfaces, ensuring perfect alignment with cylinder heads and blocks.
Core Functions & Benefits
1. Lock In Combustion Pressure: Seals cylinders 1–6 to prevent high-pressure gas leaks (critical for maintaining the W12’s 331kW max power). A failed gasket here leads to power loss and increased fuel consumption.
2. Stop Fluid Cross-Leakage: Separates coolant and oil channels—prevents coolant from mixing with oil (which causes emulsification) and oil from contaminating the cooling system, protecting engine lubrication and .
3. Manage Extreme Heat: Conducts heat from the cylinder head to the block, balancing temperatures across the W12’s complex 12-cylinder layout to reduce overheating risk.
4. Compensate for Wear: Fills micro-gaps between aging cylinder heads and blocks, maintaining a tight seal even as engine components settle over time.
Installation & Maintenance Tips
• Prep First: Clean cylinder head and block surfaces thoroughly—remove old gasket residue and carbon buildup to avoid leaks.
• Orientation: Install with printed side UP for proper alignment; all bolt holes and fluid passages will match 1–6 cylinder positions.
• Torque Specs: Tighten head bolts in 3 stages (25N·m + 90° + 90°) to meet OEM standards—critical for a lasting seal.
• Pair It Up: For full engine reliability, replace this right-side gasket with the left-side 07C103149Q during 大修 —avoids uneven wear.
Quality You Can Trust
• Made to VW Group’s strict OEM standards—100% fitment verified against 2025 parts databases.
• 12-month warranty covers material defects or sealing failure.
• Ideal for both professional garages and experienced DIYers maintaining classic W12 models.
Don’t risk engine damage with generic gaskets. 07C103148AB is the exact seal your 6.0L W12 needs to run strong.


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